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Application Study on On-Line Monitoring Technology of Dielectric Loss Tangent for Capacitive Equipment Based on Wavelet Transform & Virtual Instrument

Author: JinZuo
Tutor: WangJuFeng
School: Guangxi University
Course: High Voltage and Insulation Technology
Keywords: Virtual instrument Wavelet Correlation Analysis Dielectric loss factor tanδ Capacitive Equipment Online testing
CLC: TM835
Type: Master's thesis
Year: 2005
Downloads: 156
Quote: 3
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Abstract


Electrical equipment insulation testing is to ensure the safety of hair , and distribution , the timely discovery of potential accidents , improve the reliability of power supply important technical means . With the rapid development of electric utilities , as well as to further improve the reliability requirements of the power system operation , the development of online testing of electrical equipment is receiving increasing attention . Substations , high voltage capacitor equipment accounts for a sizeable proportion of dielectric loss factor (tanδ) is an important parameter to reflect the insulation condition . Therefore, the study Capacitive Equipment the tanδ online detection technology has great significance . This article is the dielectric loss for electrical equipment line detection using wavelet transform based on virtual instrumentation solutions - related to analysis of this new method of signal analysis using NI LabVIEW virtual instrument software development tools to develop innovative virtual instrument test system. The most important feature of this paper is the introduction of wavelet analysis technology to online testing of high-voltage electrical equipment dielectric loss , thereby effectively suppress the noise of the signal to improve the accuracy of the test . The biggest bright spot of this article is based on the virtual instrument technology to build online detection system . Is software as the core , so you do not have to like the traditional instrument , as limited by manufacturers design features , so users can take full advantage of the super computer of computing , display and connection scalability to flexibly powerful instrument of their own definition of functions . Text is divided into six chapters: currently used to measure the dielectric loss mathematical analysis methods mainly elaborated : describes the main principles of the wavelet analysis ; discusses the characteristics of the virtual instrument development and virtual instrument ; analyzes from requirements to study building a virtual instrument . Clear to build a simple instance steps and application simulation technology laboratory studies . Simulation results show that : virtual tester has a high measurement accuracy and stability .

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CLC: > Industrial Technology > Electrotechnical > High Voltage Engineering > High voltage test equipment and measurement techniques > High - voltage measurement technique
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